JoomlaPlates.com highly recommends you back up your site, and update your Joomla installation to 3.4.8 as soon as possible. If you do not already have Akeeba Backup, you can download it for free here.
Joomla 3.4.8 fixes several browser session issues found in the 3.4.7 release. All reported bugs from the 3.4.7 update have been fixed in this release, including users inability to edit or create items after the 3.4.7 update; and fatal errors about connection->stat() not existing on external database connections. After session timeout users could still navigate the backend but without being able to create/edit items or use pagination/filters.
Avoid these potential problems and update your Joomla today.
All current Joomla Template are compatible with the newest Joomla 3.4.8.